You may want to join a yahoo group that answer some of your questions. I have included some information about this email group below.
The site to join this group is http://groups.yahoo.com/group/mind-l/
MIND-L is an unmoderated mailing list focusing on neurotechnology and related subjects. Primary topics include: mind machines (also known as light and sound or L/S machines), cranial electrical stimulation (CES), biofeedback, nootropics (smart nutrients), and floatation (sensory deprivation). Some related topics are EEG analysis, relaxation, peak mind performance, and ultrasonic hearing (Neurophones).
Discussions are freewheeling and varied, representing views of neurotech users (both novice and experienced), researchers, and commercial vendors.
